rommel at bc.edu wrote:
>
> You want to plot over an irregular mesh (correct term?).
> To get a surface you need to triangulate. There is no Triangulation
> built in in Mma 2.2. But I've seen a package that came with some book
> about Mma that did it (non-trivial)
Not true; check out the standard package
DiscreteMath`ComputationalGeometry.